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- [5] Projections of the US timber supply and demand situation to 2050 - Draft findings from the USDA Forest Service 2000 RPA timber assessment PROCEEDINGS OF THE SOCIETY OF AMERICAN FORESTERS, 2000 NATIONAL CONVENTION, 2001, : 451 - 453
- [6] Rwenzori Mountain Forest non-timber products and people BIODIVERSITY OF AFRICAN PLANTS, 1996, : 732 - 740
- [7] Learning to learn: Working with local people to develop timber and non-timber forest products in Nepal FORESTRY, FOREST USERS AND RESEARCH: NEW WAYS OF LEARNING, 2000, : 109 - 121